15.1 ACA Essential Health Benefits and Metal Levels

Why the ACA reshaped individual and small-group coverage

The Patient Protection and Affordable Care Act (ACA, 2010) is heavily tested on the national portion of the Life & Health exam because it rewrote the rules for individual and small-group major medical plans. Before the ACA, an insurer could decline an applicant, exclude a pre-existing condition, cap lifetime benefits, and design a plan that omitted maternity or mental-health coverage. The ACA replaced that underwriting freedom with a federal floor of benefits and consumer protections. The exam expects you to know that floor, not the prior environment.

The core federal requirement is that all non-grandfathered individual and small-group plans must cover the Essential Health Benefits (EHB). Self-insured plans and large-group plans are not required to cover the full EHB package, although they still face the lifetime/annual-limit and preventive-care rules. Distinguishing the markets is a common trap: a question that describes a 200-employee self-funded employer is testing whether you know EHB does not apply there.

The ten Essential Health Benefit categories

Memorize these ten categories — questions frequently ask which item is not an EHB (a common distractor is "adult dental" or "long-term custodial care," neither of which is required):

Note the asymmetry tested on the exam: pediatric dental and vision are EHBs, but adult dental and vision are not. Preventive services (item 9) must be covered with no cost-sharing — no copay, coinsurance, or deductible — when delivered in-network. That zero-dollar preventive rule is itself a frequent question.

Lifetime/annual limits, dependents, and pre-existing conditions

The ACA prohibits lifetime dollar limits and annual dollar limits on EHBs. An insurer may still impose non-dollar limits, such as a cap on the number of physical-therapy visits, as long as the limit is not a dollar amount applied to an essential benefit. Watch for distractors that say "a $2 million lifetime maximum is permitted" — it is not.

Two more protections appear constantly:

• Dependent coverage to age 26. A child may remain on a parent's plan until age 26 regardless of marital status, student status, residency, financial dependency, or eligibility for other coverage. The only condition is age.
• Guaranteed issue with no pre-existing-condition exclusions. Carriers may not decline an applicant or exclude treatment for a condition that predates the policy. Coverage cannot be rescinded except for fraud or intentional misrepresentation.

These provisions apply to children and adults alike for non-grandfathered plans.

The four metal levels and actuarial value

All ACA-compliant plans are sorted into metal levels defined by actuarial value (AV) — the percentage of total covered medical costs the plan is expected to pay for a standard population. The member pays the remainder through deductibles, copays, and coinsurance. Higher metal = higher premium but lower out-of-pocket cost-sharing.

A worked example: on a Gold plan (80% AV), for an expected $10,000 of standard-population claims the plan is designed to pay about $8,000 and the member about $2,000 across the year. AV is an actuarial estimate for a standard population, not a promise that any one person pays exactly that share. A separate Catastrophic plan exists for people under 30 or with a hardship/affordability exemption; it has a lower AV, covers EHBs after a high deductible, and is not eligible for premium tax credits.

Out-of-pocket maximum and the metal-level trap

Every ACA plan, regardless of metal level, must cap a member's annual in-network cost-sharing for EHBs at the federal out-of-pocket (OOP) maximum. Once the member reaches that cap, the plan pays 100% of covered in-network EHB costs for the rest of the year. Premiums do not count toward the OOP max; deductibles, copays, and coinsurance do. The OOP cap protects against catastrophic medical bills even on a low-premium Bronze plan.

The classic exam trap is conflating premium with cost-sharing. A Platinum plan has the highest premium but the lowest deductible/coinsurance; a Bronze plan has the lowest premium but the highest out-of-pocket exposure when care is used. A healthy consumer expecting little care may rationally choose Bronze; a consumer with chronic high utilization may save money overall with Gold or Platinum despite the higher premium.

Metal level describes cost-sharing generosity, never the breadth of benefits — all metal levels cover the same EHB package.

A second common trap involves grandfathered plans (those in force continuously since March 23, 2010 without significant benefit cuts). They are exempt from some EHB and metal-level rules but must still honor the dependent-to-26 rule and the ban on lifetime limits. When a question describes a plan unchanged since before the ACA, it is testing the grandfathered exception. Note also that out-of-network care generally does not count toward the in-network OOP maximum, so network design remains critical even when a plan is ACA-compliant.